package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;

import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDate;
import java.time.LocalDateTime;
import java.util.List;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // TODO 后期需要进行md5加密，然后再进行比对
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }


    /*
     * 新增员工
     * */
    public void save(EmployeeDTO employeeDTO) {
        Employee employee=new Employee();

        //对象属性拷贝
        BeanUtils.copyProperties(employeeDTO,employee);

        //设置账号状态,默认为1表示正常,0表示锁定
        employee.setStatus(StatusConstant.ENABLE);

        //设置密码,默认为123456
        employee.setPassword(PasswordConstant.DEFAULT_PASSWORD);

        //设置当前记录的创造时间和修改时间
//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());

        //设置当前记录人的id和修改人的id
//        employee.setUpdateUser(BaseContext.getCurrentId());
//        employee.setUpdateUser(BaseContext.getCurrentId());

        employeeMapper.insert(employee);
    }

    //员工分页查询
    @Override
    public PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO) {
        PageHelper.startPage(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());

        Page<Employee> page= employeeMapper.pageQuery(employeePageQueryDTO);

        long total = page.getTotal();
        List<Employee> result = page.getResult();

        return new PageResult(total,result);
    }

    /**
     * 启用禁用员工账号
     * @param status
     * @param id
     */
    @Override
    public void startOrStaop(Integer status, Long id) {
        Employee employee = new Employee();
        employee.setStatus(status);
        employee.setId(id);

//        Employee employee1= Employee.builder()
//                .status(status)
//                .id(id)
//                .build();
        employeeMapper.update(employee);

    }

    /*
    根据id查询员工
     */
    @Override
    public Employee selectById(Integer id) {
        Employee employee= employeeMapper.selectById(id);

        return employee;
    }

    /**
     * 修改员工信息
     * @param employeeDTO
     */
    @Override
    public void updateEmployee(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);

//        employee.setUpdateTime(LocalDateTime.now());
        //TODO 更新用户列有异常
//        employee.setUpdateUser(BaseContext.getCurrentId());

        employeeMapper.update(employee);
    }

}
